The 32 A rating means this breaker directly protects motors drawing up to that full-load current. In practice, the thermal element tracks motor heating, while the magnetic trip at 537.6 A handles short-circuit faults — 16.8 times In, which keeps it selective with upstream devices in most distribution panels. Motor power capability is 15 kW at 400/415 V AC, 18.5 kW at 500 V AC, and 22 kW at 690 V AC — these are the standard IEC motor ratings for a 32 A frame in AC-3 duty. The utilisation category is AC-3 (squirrel-cage motors: starting, switching off during running) and AC-3e (enhanced electrical endurance for high-inertia loads).
Breaking capacity varies by voltage: 50 kA Icu at 230/240 V, 10 kA at 400/415 V, 6 kA at 440 V, 4 kA at 500 V, and 3 kA at 690 V. Certified to EN/IEC 60947-2 (circuit-breaker standard) and EN/IEC 60947-4-1 (motor-starter standard), plus UL 60947-4-1 and CSA C22.2 No 60947-4-1. This dual listing means it satisfies both IEC and North American code requirements for motor branch-circuit protection — one part number for global BOMs.
The 45 mm width (three 9 mm modules) fits standard enclosure fill-factor calculations. IP20 finger-safe terminals mean it can sit in an open panel without additional shrouding, though the IK04 impact rating is light — protect it from tool drops during commissioning. Power terminals accept up to 2 x 6 mm² solid or 2 x 4 mm² flexible with ferrule. Tightening torque is 1.7 N·m on the screw clamp — a common value that doesn't require a special tool.